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Remove SplitAnalysis::removeUse. It was only used to make SplitAnalysis

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reusable, but that is no longer relevant since a split will always replace the
original.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@115709 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Jakob Stoklund Olesen 2010-10-05 23:10:09 +00:00
parent d00f7e0c76
commit fc3ef3c2e9
2 changed files with 0 additions and 32 deletions
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29
lib/CodeGen/SplitKit.cpp
View File

@ -77,34 +77,6 @@ void SplitAnalysis::analyzeUses() {
<< usingLoops_.size() << " loops.\n");
}
/// removeUse - Update statistics by noting that MI no longer uses curli.
void SplitAnalysis::removeUse(const MachineInstr *MI) {
if (!usingInstrs_.erase(MI))
return;
// Decrement MBB count.
const MachineBasicBlock *MBB = MI->getParent();
BlockCountMap::iterator bi = usingBlocks_.find(MBB);
assert(bi != usingBlocks_.end() && "MBB missing");
assert(bi->second && "0 count in map");
if (--bi->second)
return;
// No more uses in MBB.
usingBlocks_.erase(bi);
// Decrement loop count.
MachineLoop *Loop = loops_.getLoopFor(MBB);
if (!Loop)
return;
LoopCountMap::iterator li = usingLoops_.find(Loop);
assert(li != usingLoops_.end() && "Loop missing");
assert(li->second && "0 count in map");
if (--li->second)
return;
// No more blocks in Loop.
usingLoops_.erase(li);
}
// Get three sets of basic blocks surrounding a loop: Blocks inside the loop,
// predecessor blocks, and exit blocks.
void SplitAnalysis::getLoopBlocks(const MachineLoop *Loop, LoopBlocks &Blocks) {
@ -865,7 +837,6 @@ void SplitEditor::rewrite() {
}
}
MO.setReg(LI->reg);
sa_.removeUse(MI);
DEBUG(dbgs() << " rewrite " << Idx << '\t' << *MI);
}

3
lib/CodeGen/SplitKit.h
View File

@ -68,9 +68,6 @@ public:
/// split.
void analyze(const LiveInterval *li);
/// removeUse - Update statistics by noting that mi no longer uses curli.
void removeUse(const MachineInstr *mi);
const LiveInterval *getCurLI() { return curli_; }
/// clear - clear all data structures so SplitAnalysis is ready to analyze a